Pérez Lip Iván Eduardo, García Rupaya Carmen Rosa, Ruiz García de Chacón Vilma Elizabeth
Universidad Peruana Cayetano Heredia. Lima, Perú.
Rev Cient Odontol (Lima). 2024 Sep 17;12(3):e207. doi: 10.21142/2523-2754-1203-2024-207. eCollection 2024 Jul-Sep.
To determine the frequency of Preeruptive Intracoronal Resorption (PIR) in a sample of digital panoramic radiographs of Peruvian patients between 3 to 21 years of age who attended an oral and maxillofacial radiology center between 2013 and 2021.
This observational study was descriptive, retrospective and cross-sectional. A sample of 1897 digital panoramic radiographs was evaluated to determine the frequency of PIR and its covariates of location, depth, and inclination of the affected teeth. The authors' calibration was performed before the study. The intraoperator agreement was determined by calculating the Kappa coefficient (0.72, CI 0.67-0.76). The radiographs were evaluated by the study's principal author (IEP), and the data were collected in a form designed for the study. The statistical association was determined using the Chi-square test, with a confidence level of 95%, and a p-value of less than 0.05 was considered significant.
The frequency of PIR was 3.95%, with no statistically significant difference between sexes (p>0.05). The most common findings were PIR in the lower right second molar (32.5%), a singular defect (89.3%), central location (44.5%), and superficial dentinal involvement (83.1%). These results aligned with existing literature.
Our results describe the epidemiological profile of PIR in the present sample as a single radiolucent and small (grade I) defect located centrally in the coronal dentin, often affecting posterior lower teeth with a frequency lesser than 5%. These findings provided valuable insights for clinicians and researchers regarding the frequency and characteristics of PIR in Peruvian patients.
确定2013年至2021年间在一家口腔颌面放射中心就诊的3至21岁秘鲁患者的数字化全景X线片样本中牙内吸收（PIR）的发生率。
本观察性研究为描述性、回顾性和横断面研究。评估了1897份数字化全景X线片样本，以确定PIR的发生率及其患牙位置、深度和倾斜度的协变量。在研究前进行了作者校准。通过计算Kappa系数（0.72，CI 0.67 - 0.76）确定了操作者内一致性。X线片由研究的主要作者（IEP）进行评估，数据通过专门为该研究设计的表格收集。使用卡方检验确定统计学关联，置信水平为95%，p值小于0.05被认为具有统计学意义。
PIR的发生率为3.95%，性别之间无统计学显著差异（p>0.05）。最常见的表现为右下第二磨牙的PIR（32.5%）、单一缺损（89.3%）、中央位置（44.5%）和浅层牙本质受累（83.1%）。这些结果与现有文献一致。
我们的结果描述了本样本中PIR的流行病学特征，表现为位于牙冠牙本质中央的单个透射性小（I级）缺损，常累及下颌后牙，发生率低于5%。这些发现为临床医生和研究人员提供了关于秘鲁患者PIR发生率和特征的宝贵见解。
